Information About Do Not Disturb

SCCP: Do Not Disturb

The Do Not Disturb (DND) feature allows phone users to disable audible ringing for incoming calls. When DND is enabled, incoming calls do not ring on the phone, however there is visual alerting and the call information displays, and a call can be answered if desired. When a local IP phone calls another local IP phone that is in the DND state, the message “Ring out DND” displays on the calling phone indicating that the target phone is in the DND state.

Phone users can toggle DND on and off by using the DND soft key in the idle or ringing call states. A SSCP phone user can toggle DND on or off in the ringing state only if DND in not already active on the phone. If DND is already active when a new call comes in, the SCCP phone user cannot change the DND state by pressing the DND soft key.

If an SSCP phone user toggles DND on during an incoming call, the DND state remains active for the current call only. If a SIP phone user toggles DND on during an incoming call, the DND state remains active during the current call and for all future calls until the user explicitly toggles DND off.

Pressing the DND soft key during an incoming call forwards the call to the call-forward no answer destination if Call Forward No Answer is enabled. If Call Forward is not enabled, pressing the DND soft key disables audible ringing and visual alerting, but the call information is visible on the phone display.

In Cisco CME 3.2.1 and later versions, DND can be blocked from phones with the feature-ring function. A feature ring is a triple-pulse ring, a type of ring cadence in addition to internal call and external call ring cadences. For example, an internal call in the United States rings for 2 seconds on and 4 seconds off (single-pulse ring), and an external call rings for 0.4 seconds on, 0.2 seconds off, 0.4 seconds on, and 0.2 seconds off (double-pulse ring).

The triple-pulse ring is used as an audio identifier for phone users. For example, each salesperson in a sales department could have an IP phone with a button sharing the same set of ephone-dns with the sales staff and another button for their private line for preferred customers. To help a salesperson identify an incoming call to his or her private line, the private line can be configured with the feature-ring function. You can disable the DND function on feature-ring lines. In the preceding example, salespeople could activate DND on their phones and still hear calls to their private lines.

SIP: Do Not Disturb

In Cisco Unified CME 7.1 and later versions, the Do Not Disturb (DND) feature for SIP phones prevents incoming calls from audibly ringing a phone. When DND is enabled, the phone flashes an alert to visually indicate an incoming call instead of ringing and the call can be answered if desired. The message “Do Not Disturb is active” displays on the phone and calls are logged to the Missed Calls directory.

In versions earlier than Cisco Unified CME 7.1, the DND feature blocks incoming calls to a SIP phone with a busy tone. Cisco Unified CME rejects calls to all lines on the phone and plays a busy tone to the caller. Received calls are not logged to the Missed Calls directory on the phone.

DND applies to all lines on the phone. If DND and Call Forward All are both enabled on a phone, Call Forward All takes precedence on incoming calls.

You must enable DND for a SIP phone through Cisco Unified CME. The DND soft key displays by default on supported SIP phones in both the Ringing and Idle states. You can remove or change the order of this soft key using a voice register template.

A phone user can toggle DND on and off at the phone by using the DND soft key. If a SIP phone user activates DND during an incoming call, the DND state remains active during the current call and for all future calls until the user explicitly toggles DND off.

If a phone user toggles DND on or off at the phone, Cisco Unified CME restores the DND state after the phone resets or restarts, if you save the running configuration before Cisco Unified CME reboots.

How to Configure Do Not Disturb

SCCP: Blocking Do Not Disturb

To block DND on phones that have buttons configured for feature ringing, perform the following steps. DND is enabled by using the DND soft key on Cisco Unified IP phones that support soft keys.

Prerequisites

Cisco Unified 3.2.1 or a later version.

Phone line must be configured for feature ring with the button f command.

Call-forwarding no-answer must be set for a phone to use DND to forward calls. For configuration information, see Configuring Call Transfer and Forwarding. No other configuration is necessary for basic DND.

Restrictions

Phone users cannot enable DND for a shared line in a hunt group. The soft key displays in the idle and ringing states but does not enable DND for shared lines in hunt groups.

SUMMARY STEPS

1. e nable

2. configure terminal

3. ephone phone-tag

4. no dnd feature-ring

5. end

DETAILED STEPS

Command or Action

Purpose

Step 1

enable

Router> enable

Enables privileged EXEC mode.

Enter your password if prompted.

Step 2

configure terminal

Router# configure terminal

Enters global configuration mode.

Step 3

ephone phone-tag

Router(config)# ephone 10

Enters ephone configuration mode.

phone-tag —Unique sequence number that identifies the ephone to be configured.

Step 4

no dnd feature-ring

Router(config-ephone)# no dnd feature-ring

Enables ringing on phone buttons configured for feature ring when the phone is in DND mode.

Step 5

end

Router(config-ephone)# end

Returns to privileged EXEC mode.

Examples

In the following configuration example, when DND is activated on ephone 1 and ephone 2, button 1 will ring, but button 2 will not.

ephone-dn 1

number 1001

ephone-dn 2

number 1002

ephone-dn 10

number 1110

preference 0

no huntstop

ephone-dn 11

number 1111

preference 1

ephone 1

button 1f1

button 2o10,11

no dnd feature-ring

ephone 2

button 1f2

button 2o10,11

no dnd feature-ring

SCCP: Verifying Do Not Disturb

show ephone dnd

Use this command to display a list of SCCP phones that have DND enabled.

SIP: Configuring Do Not Disturb

To enable the Do Not Disturb (DND) feature on a SIP phone, perform the following steps.

Prerequisites

Cisco CME 3.4 or a later version.

Cisco Unified CME 7.1 or a later version to use the DND soft key.

Call-forwarding busy must be set for a SIP IP phone to use DND to forward calls. For configuration information, see “Configuring Call Transfer and Forwarding” in the Cisco Unified CME System Administrator Guide.

Restrictions

In versions earlier than Cisco Unified CME 7.1, you enable the DND soft key on SIP phones by using the dnd-control command.

If you enable DND on the phone and remove the DND soft key, the user cannot toggle DND off at the phone.

Where to Go Next

Ephone hunt group agents can control their ready/not-ready status (their ability to receive calls) using the DND function or the HLog function of their phones. When they use the DND soft key, they do not receive calls on any extension on their phones. When they use the HLog soft key, they do not receive calls on hunt group extensions, but they do receive calls on other extensions. For more information on agent status control and the HLog function, see Configuring Call Coverage Features.

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NoteTable 19-2 lists the Cisco Unified CME version that introduced support for a given feature. Unless noted otherwise, subsequent versions of Cisco Unified CME software also support that feature.

Table 19-2 Feature Information for Do Not Disturb

Feature Name

Cisco Unified CME
Version

Feature Information

Do Not Disturb

7.1

Enhanced DND support on SIP phones to allow incoming calls to visually flash an alert.